Tube-feeding device for swaging-machines.



P. L. SESSIONS.

TUBE FEEDING DEVICE FOR SWAGING MACHINES.

APPLICATION TILED MAY'Y, 1913 M p mm m wv km/ w 0M u. 2

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F. L. SESSIONS.

TUBE FEEDING DEVICE FOR SWAGING MACHINES.

APPLICATION FILED MAY'I, 1913.

2 SHEBTS-SHBBT 2.

"112 v if ill lltl liltl til fit'l'hld neuron FRANK SESSIGNS, F LAKEWOOD, (EH10, ASSIGNUTR T9 TI-H61 STANDARE? 'WEL'EIZ NG COMPANY, OF (fl/(LEVELl .-.I\TID, OI-IXU, A CORPORATION 6F OHIO.

TUBE-FEEDING DEVICE FOR SVI'AGING MI-LCHIENEEL resents.

To all'whom it may concern."

Be it known that I, FRANK L. SESSIONS, a citizen of the United States, and a resident of Lakewood, county of Guyaihoga, and State of Ohio, have invented anew and useful Improvement in Tube-Feeding Devices for Swaging-Machines, of which the fol lowing is a specification, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

The present improvements, while designed more particularly, as indicated, for feeding tubes in a swaging machine, are not neces sarily limited in their applicability to this specific use, but maybe adopted with equally good results in connection with varions'other kinds of machines in which work, whether in the form of a tube or similar article, re

quires to be fed or drawn through the operating mechanism. Heretofore this feeding of the work has generally been accomplished by hand, and, aside from requiring considerable exertion on the part of the operatives, has been slow and tedious as well.

The object of the present invention is to provide a power feeding device which will be just as sensitive as though the work were being fed by hand, and just as fully under the control of the operator in charge.

To the accomplishment of the foregoing and related objects, the invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawings and the itollowing description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawings :-Figure 1 is a side'elevational view of a swaging machine with my improved feeding or drawing device shown in operative relation thereto; Fig. 2 is an end elevation of the latter as viewed from the right in Fig. Fig. 3 is a vertical transverse cross-section of the same taken on the plane indicated by the line 33, Fig. 1; Fig. 4 is another vertical transverse section taken on the plane indicated by the line ll- 1, Fig. 1; and Fig. 5 is a horizontal transverse section," the plane thereof being indicated by the line 5-5, Fig. 1.

Specification of Letters Patent.

eaten-tenant. is, rare.

itpplicationfiledttay 7, 1913. Eeriel No. 766,055.

The swaging" mechanism 1, together with the head 2 which carries the work that is being operated upon by said mechanism, are mounted on the same frame or bed 3, and may be regarded as of typical construction so far as the present invention is concerned. Said headis in effect-a carriage, being longitudinally movable on a slide-way t that extends lengthwise of the aforesaid bed, and it carries aqsuitable mandrel 5, which is adapted in the "present instance, to receive the tube that is to he swaged or hammered by the swaging mechanism 1. The present invention is more particularly concerned with the means whereby the head or casing 52 may the "mowed back and forth "along the shde-way d, In order to advance and retract the mandrel carried by said head, together with the work mounted on such mandrel. It is necessary that :the movement oi the work be subject to very nice and instant control, since otherwise it may stick in the swaging mechanism, or the latter'may become deranged, and for this reason it has heretofore been deemed impossible to sub-- stitute any power-driven. means for the manual labor that has been utilized for operating the head. iFor the purpose of such operation by power, I provide an endless cable preferably consistin of a sprocket chain 6 mounted on spro ct-wheels Y and 8 at opposite ends of the slideway 4-, so that such chain will extend parallel with the latter. The block 9, which supports the sprocket-wheel "I at the end adjacent to the swaging mechanism, is adjustable mounted on the bed of the machine so that the chain may be kept under proper tension. At one point the chain is connected with the head or carriage so that movement of the chain will serve to reciprocate such carriage, in one direction or the other, as the case may be. Such movement is imparted to the chain by driving the sprocket S at the further end of the bed, through the medium of a worm gear 10 and worm 11, respectively mounted on the spindle 12, which carries the sprocket, and on a second spindle or short shaft 13 disposed below and at right angles to said sprocket spindle. The spindle l3 carries two spur gears '14: and 15 adapted to be driven by gears 16 and, 17 loosely mounted on a drive-shaft 18 supported in bearings 19 below the aforesaid spindle 13 and provided with a driving pulley 20 or other means whereby power may be communicated thereto. The gears 14. and 16 mesh directly, but in the case of the two gears 15 and 17, a third, idler gear 21 is interposed, which serves to produce a reversal in direction of rotation of the spindle 13 and thus of the sprocltctwvhcel 8, when the drive is derived through this chain of gears.

The driving-shaft 18 is adapted to be optionally connected to drive either of the two gears 16 and 17 by means of a double cone clutch 22 mounted between said gears and shittablc into engagement with either one. in the position shown in the several figures of the drawings this clutch is in lieu tral, inoperative position. Such shifting of the clutch is effected by means of a handlever 23 mounted alongside the bed of the machine at a convenient station for the operator to observe the swaging operation, said lever being connected with the clutch through links 24 .and an intervening lever 25, as shown in Fig. 1.

Another object, aside from the convenience of tl.. operator, in locating the hand lever alongside of the bed of the machine, is to render it available for automatic operation through the medium of the traveling carriage or head 2, which supports the. man drcl. The means for accomplishing this result are best shown in Figs; 1, t and 5, and will be seen to comprise an endless chain or cable 26 disposed below the slidcway 4, on

which said carriage moves, and passing around two sheaves 27 that lie in a horizontal plane. The outer lap of this cableis provided with two spaced blocks 28*disposed to lie on opposite sides of the lever, and in the normal position of the cable, to be spaced far enough from said lever not to interfere with the free movement of the same, although said lever when swung in one direction or the other will approximately contact with the corresponding block. In addition to the two blocks 28, two other blocks 29 are provided on the other lapof the cable in position to be engaged by a bracket 30, which depends from the carriage 2. These blocks 29 are so located that one or the other will be engaged by said bracket, as the carriage reaches the end of its travel in the corresponding direction. Upon such engagement the cable will be given a slight movement which will be suificicnt to cause the particular block 28, which is in substantial engagement with the lever 23, to swing the latter into neutral position and thus stop further movement of the carriage. By this last described means, themovement of the carriage beyond a predetermined limit in either direction, is absolutely guarded against without in any wise interfering a 1th the free control of the movement thereof throughout its proper length of travel. .By utilizing a frictional clutch, moreover, the

danger of an.undue application of force to the carriage can be eliminated by providing for the clutch to slip before the breaking point of any of the operative parts is reached. In any event, the operator, with his hands on the lever, has exactly the same instant control. over the operation of the machine, as he would have were he manually drawing the carriage along its bed or pushing the tube or shaft being swaged into the dies. Both the blocks 28, and the blocks 29, are adjustable on the respective laps of the cable 26 towhich they are aiiixe d, and thus permit the setting to a niccty of the automatic stop.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention 1. In mechanism of the character described, the combination of a slide-way; a head reciprocable thereon and adapted to support the work to be operatedon; sprockets at the respective endsof sait'. way; an

endless chain passing around said sprockets and connected at one point with said head;

and reversible driving means connected with one of said sprockets.

2. In mechanism of the character described, the combination of aslide-way; a head reciprocable thereon and adapted to support the work to be operated on; sprockets at the respective endsof said way; an endless chain passing around said sprockets and connected at one point with said head; reversible driving means connected with one of said sprockets; and manually operable means adapted to control said driving means.

3. In mechanism of the character described, the combination of a slide-way; a head reciprocable thereon and adapted to support the work to be operated on; sprockets at the respective ends of said way; an endless chain passing around said; sprockets and connected at one point with said head; reversible driving means connected with one of said sprockets; a clutch adapted to control said driving means; a hand lever adapted to operate said clutch; and means automatically operable by said head, adapted'to shift said hand lever.

4. In mechanism of the character described, the combination of a slide-way; a head reciprocable thereon and adapted to support the work to be operated on; sprockets at the respective ends of said way; an endless chain passing around said sprockets and connected at one pointwith said head; reversible driving means connected with one i of said sprockets; a friction 'clutch'adapted to control said drivi'ngmeans; a hand lever adapted to operate'said clutch; and means headreciprocable thereon and adapted to'" support the Worlrto'be operated on; sprockets at the respective ends of said Way; an endless chain passing around said sprockets andconnected at one'point with said head; reversible driving means connected with one to control said driving means; a hand lever adapted to operate said clutch; an endless cable disposed alongside the aforesaid way two spaced blocks on one lap of said cable, located one on each side of said lever and respectively adapted to substantially contact therewith when said lever is shifted into corresponding operative position; two spaced blocks on the other lap of said cable and near the respective ends of said way; and a bracket on said head adapted to engage one or the other of said last-named blocks as said head approaches the corresponding end of said way.

Signed by me, this 2nd day of May, 1913.

FRANK L. SESSIONS. I

Attested by-- H. B. FAY,

JNO. F. OBERLIN. 

